There is a 3×3 dot grid. The distance between one point to another is 1. How many different non-congruent polygons can you make on the grid?
Rules:
All vertices of the polygon must be on the grid
Only non self intersecting polygons
Only polygons with non-empty interior (<=> positive area)
The area of each polygon is 2
At least one side of the polygon is 1.5 or bigger
please help me!
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